Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * PCMCIA client driver for AVM A1 / Fritz!PCMCIA | |
3 | * | |
4 | * Author Carsten Paeth | |
5 | * Copyright 1998-2001 by Carsten Paeth <calle@calle.in-berlin.de> | |
6 | * | |
7 | * This software may be used and distributed according to the terms | |
8 | * of the GNU General Public License, incorporated herein by reference. | |
9 | * | |
10 | */ | |
11 | ||
12 | #include <linux/module.h> | |
13 | ||
14 | ||
15 | #include <linux/kernel.h> | |
16 | #include <linux/init.h> | |
1da177e4 LT |
17 | #include <linux/ptrace.h> |
18 | #include <linux/slab.h> | |
19 | #include <linux/string.h> | |
20 | #include <asm/io.h> | |
21 | #include <asm/system.h> | |
22 | ||
1da177e4 LT |
23 | #include <pcmcia/cistpl.h> |
24 | #include <pcmcia/ds.h> | |
25 | #include "hisax_cfg.h" | |
26 | ||
27 | MODULE_DESCRIPTION("ISDN4Linux: PCMCIA client driver for AVM A1/Fritz!PCMCIA cards"); | |
28 | MODULE_AUTHOR("Carsten Paeth"); | |
29 | MODULE_LICENSE("GPL"); | |
30 | ||
1da177e4 LT |
31 | |
32 | /*====================================================================*/ | |
33 | ||
34 | /* Parameters that can be set with 'insmod' */ | |
35 | ||
36 | static int isdnprot = 2; | |
37 | ||
38 | module_param(isdnprot, int, 0); | |
39 | ||
40 | /*====================================================================*/ | |
41 | ||
42 | /* | |
43 | The event() function is this driver's Card Services event handler. | |
44 | It will be called by Card Services when an appropriate card status | |
45 | event is received. The config() and release() entry points are | |
46 | used to configure or release a socket, in response to card insertion | |
47 | and ejection events. They are invoked from the skeleton event | |
48 | handler. | |
49 | */ | |
50 | ||
a465870a | 51 | static int avma1cs_config(struct pcmcia_device *link) __devinit ; |
fba395ee | 52 | static void avma1cs_release(struct pcmcia_device *link); |
1da177e4 LT |
53 | |
54 | /* | |
55 | The attach() and detach() entry points are used to create and destroy | |
56 | "instances" of the driver, where each instance represents everything | |
57 | needed to manage one actual PCMCIA card. | |
58 | */ | |
59 | ||
a465870a | 60 | static void avma1cs_detach(struct pcmcia_device *p_dev) __devexit ; |
1da177e4 | 61 | |
1da177e4 | 62 | |
1da177e4 LT |
63 | /*====================================================================== |
64 | ||
65 | avma1cs_attach() creates an "instance" of the driver, allocating | |
66 | local data structures for one device. The device is registered | |
67 | with Card Services. | |
68 | ||
69 | The dev_link structure is initialized, but we don't actually | |
70 | configure the card at this point -- we wait until we receive a | |
71 | card insertion event. | |
72 | ||
73 | ======================================================================*/ | |
74 | ||
a465870a | 75 | static int __devinit avma1cs_probe(struct pcmcia_device *p_dev) |
1da177e4 | 76 | { |
e773cfe1 | 77 | dev_dbg(&p_dev->dev, "avma1cs_attach()\n"); |
1da177e4 | 78 | |
1da177e4 | 79 | /* General socket configuration */ |
00990e7c | 80 | p_dev->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO; |
7feabb64 DB |
81 | p_dev->config_index = 1; |
82 | p_dev->config_regs = PRESENT_OPTION; | |
f8cfa618 | 83 | |
15b99ac1 | 84 | return avma1cs_config(p_dev); |
1da177e4 LT |
85 | } /* avma1cs_attach */ |
86 | ||
87 | /*====================================================================== | |
88 | ||
89 | This deletes a driver "instance". The device is de-registered | |
90 | with Card Services. If it has been released, all local data | |
91 | structures are freed. Otherwise, the structures will be freed | |
92 | when the device is released. | |
93 | ||
94 | ======================================================================*/ | |
95 | ||
a465870a | 96 | static void __devexit avma1cs_detach(struct pcmcia_device *link) |
1da177e4 | 97 | { |
e773cfe1 | 98 | dev_dbg(&link->dev, "avma1cs_detach(0x%p)\n", link); |
e2d40963 DB |
99 | avma1cs_release(link); |
100 | kfree(link->priv); | |
1da177e4 LT |
101 | } /* avma1cs_detach */ |
102 | ||
103 | /*====================================================================== | |
104 | ||
105 | avma1cs_config() is scheduled to run after a CARD_INSERTION event | |
106 | is received, to configure the PCMCIA socket, and to make the | |
107 | ethernet device available to the system. | |
108 | ||
109 | ======================================================================*/ | |
110 | ||
00990e7c | 111 | static int avma1cs_configcheck(struct pcmcia_device *p_dev, void *priv_data) |
1da177e4 | 112 | { |
00990e7c DB |
113 | p_dev->resource[0]->end = 16; |
114 | p_dev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; | |
115 | p_dev->resource[0]->flags |= IO_DATA_PATH_WIDTH_8; | |
90abdc3b | 116 | p_dev->io_lines = 5; |
00990e7c | 117 | |
90abdc3b | 118 | return pcmcia_request_io(p_dev); |
1da177e4 LT |
119 | } |
120 | ||
1da177e4 | 121 | |
a465870a | 122 | static int __devinit avma1cs_config(struct pcmcia_device *link) |
1da177e4 | 123 | { |
eb14120f | 124 | int i = -1; |
1da177e4 LT |
125 | char devname[128]; |
126 | IsdnCard_t icard; | |
127 | int busy = 0; | |
fba395ee | 128 | |
e773cfe1 | 129 | dev_dbg(&link->dev, "avma1cs_config(0x%p)\n", link); |
1da177e4 | 130 | |
5fcd4da0 DB |
131 | devname[0] = 0; |
132 | if (link->prod_id[1]) | |
133 | strlcpy(devname, link->prod_id[1], sizeof(devname)); | |
a9606fd3 | 134 | |
5fcd4da0 DB |
135 | if (pcmcia_loop_config(link, avma1cs_configcheck, NULL)) |
136 | return -ENODEV; | |
1da177e4 | 137 | |
5fcd4da0 | 138 | do { |
1da177e4 LT |
139 | /* |
140 | * allocate an interrupt line | |
141 | */ | |
eb14120f | 142 | if (!link->irq) { |
50db3fdb | 143 | /* undo */ |
fba395ee | 144 | pcmcia_disable_device(link); |
1da177e4 LT |
145 | break; |
146 | } | |
50db3fdb | 147 | |
1da177e4 LT |
148 | /* |
149 | * configure the PCMCIA socket | |
150 | */ | |
1ac71e5a | 151 | i = pcmcia_enable_device(link); |
4c89e88b | 152 | if (i != 0) { |
fba395ee | 153 | pcmcia_disable_device(link); |
1da177e4 LT |
154 | break; |
155 | } | |
156 | ||
157 | } while (0); | |
158 | ||
1da177e4 LT |
159 | /* If any step failed, release any partially configured state */ |
160 | if (i != 0) { | |
161 | avma1cs_release(link); | |
15b99ac1 | 162 | return -ENODEV; |
1da177e4 LT |
163 | } |
164 | ||
eb14120f | 165 | icard.para[0] = link->irq; |
9a017a91 | 166 | icard.para[1] = link->resource[0]->start; |
1da177e4 LT |
167 | icard.protocol = isdnprot; |
168 | icard.typ = ISDN_CTYPE_A1_PCMCIA; | |
169 | ||
170 | i = hisax_init_pcmcia(link, &busy, &icard); | |
171 | if (i < 0) { | |
9a017a91 DB |
172 | printk(KERN_ERR "avma1_cs: failed to initialize AVM A1 " |
173 | "PCMCIA %d at i/o %#x\n", i, | |
174 | (unsigned int) link->resource[0]->start); | |
1da177e4 | 175 | avma1cs_release(link); |
15b99ac1 | 176 | return -ENODEV; |
1da177e4 | 177 | } |
b498ada6 | 178 | link->priv = (void *) (unsigned long) i; |
1da177e4 | 179 | |
15b99ac1 | 180 | return 0; |
1da177e4 LT |
181 | } /* avma1cs_config */ |
182 | ||
183 | /*====================================================================== | |
184 | ||
185 | After a card is removed, avma1cs_release() will unregister the net | |
186 | device, and release the PCMCIA configuration. If the device is | |
187 | still open, this will be postponed until it is closed. | |
188 | ||
189 | ======================================================================*/ | |
190 | ||
fba395ee | 191 | static void avma1cs_release(struct pcmcia_device *link) |
1da177e4 | 192 | { |
b498ada6 | 193 | unsigned long minor = (unsigned long) link->priv; |
1da177e4 | 194 | |
e773cfe1 | 195 | dev_dbg(&link->dev, "avma1cs_release(0x%p)\n", link); |
1da177e4 | 196 | |
5f2a71fc | 197 | /* now unregister function with hisax */ |
b498ada6 | 198 | HiSax_closecard(minor); |
1da177e4 | 199 | |
fba395ee | 200 | pcmcia_disable_device(link); |
1da177e4 LT |
201 | } /* avma1cs_release */ |
202 | ||
1da177e4 | 203 | |
c594c12c DB |
204 | static struct pcmcia_device_id avma1cs_ids[] = { |
205 | PCMCIA_DEVICE_PROD_ID12("AVM", "ISDN A", 0x95d42008, 0xadc9d4bb), | |
206 | PCMCIA_DEVICE_PROD_ID12("ISDN", "CARD", 0x8d9761c8, 0x01c5aa7b), | |
207 | PCMCIA_DEVICE_NULL | |
208 | }; | |
209 | MODULE_DEVICE_TABLE(pcmcia, avma1cs_ids); | |
210 | ||
1da177e4 LT |
211 | static struct pcmcia_driver avma1cs_driver = { |
212 | .owner = THIS_MODULE, | |
2e9b981a | 213 | .name = "avma1_cs", |
15b99ac1 | 214 | .probe = avma1cs_probe, |
a465870a | 215 | .remove = __devexit_p(avma1cs_detach), |
c594c12c | 216 | .id_table = avma1cs_ids, |
1da177e4 | 217 | }; |
8661bb5b | 218 | |
1da177e4 LT |
219 | /*====================================================================*/ |
220 | ||
221 | static int __init init_avma1_cs(void) | |
222 | { | |
223 | return(pcmcia_register_driver(&avma1cs_driver)); | |
224 | } | |
225 | ||
226 | static void __exit exit_avma1_cs(void) | |
227 | { | |
228 | pcmcia_unregister_driver(&avma1cs_driver); | |
1da177e4 LT |
229 | } |
230 | ||
231 | module_init(init_avma1_cs); | |
232 | module_exit(exit_avma1_cs); |